FILTER PAPER CIRCLES WHATMAN GRADE NO.4 7CM DIA BOX 100 Nn Unground Neck Pyrex Ideal for a wide range

Ideal for a wide range of liquid storage

Accessory platinum wire electrodes

pen-style counter with five digit LCD readout  of accumulative count-up and reset

Will retain solid particles

L x W  mm  140 x 140  140 x 140   140 x 140  Overall L x W x H   mm  351 x 260 x 183   351 x 260 x 233    351 x 260 x 358

FILTER PAPER CIRCLES WHATMAN GRADE NO.4 7CM DIA BOX 100 Nn Unground Neck Pyrex Ideal for a wide rangeQualitative Grade Grade No. Flowrate Retention microns Wet strength Thickness, mm Ash % 4 Excellent retention of coarse and gelatinous precipitates Fast 20 25 Low* 0. 21 0. 06 *Suitable for gravity or low suction filtration. Care must be taken to prevent rupture of the paper.